Home » Public Forums » GMCnet » Electrical gremlins (Hi/low beam switch & air suspension)
| Electrical gremlins [message #222769] |
Mon, 16 September 2013 21:13  |
amdgmcman
Messages: 76
Registered: April 2007
Location: Long Beach, CA
Karma: 0
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Member |
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Greetings,
Since arriving home from my harrowing trip to AZ where if it weren’t for Steve Ferguson we might still be there, gremlins have surfaced in my 78 Royale…
On the way home the high/low beam switch connected to the turn signal stalk on the Caddy steering column broke and now I have no headlights at all. I was hoping that if I sprayed contact cleaner in the openings to the column it might work, but no such luck. It doesn’t click when pulled like it did when working, so the switch inside is probably history. Does anyone know where I can find a replacement unit? I’d like to repair it myself, so is there a schematic or instructions on how to perform the repair?
Then the air bag system is on the fritz. I have the second generation system with the three toggle switches on the panel under the driver’s side window. The system stopped working all together, so I went to fill the bags from outside at the shrader valves, but it was taking so long to do with the small compressor I had available I tried to switch the system on, and it worked. The problem is that the left side won’t turn off. The compressor keeps running unless I pull the fuse. Once I reinsert the fuse the compressor starts and just keeps running. The right bag was not affected and works properly. I removed the switch and cleaned the terminals, but it looks like that it’s not the problem.
Anyone have any ideas, suggestions, comments?
Thanks,
AMDGMCMan
Alan M DeLuccio
78 Royale with
Coachmen,Center Kitchen Floorplan
09 Harley Davidson Street Glide
65 Corvair Monza Convertible
96 RAV4 2 door Manual 4WD
Long Beach, CA
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| Re: Electrical gremlins [message #222785 is a reply to message #222769] |
Mon, 16 September 2013 23:40  |
homer
Messages: 73
Registered: April 2011
Location: arizona/ BC canada
Karma: 0
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on your column problem you can give Ray Orme at old car parts NW inc in Renton WA. a call this guy is great.425-572-0764 I have a cadi column he was right on the mark. Homer
homer
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| Re: Electrical gremlins [message #222795 is a reply to message #222769] |
Tue, 17 September 2013 07:46 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Senior Member |
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Sir: the Caddy dimmer switch is on the outside of the column below the dash. It has a rod running to it and is fastened to the column with the same 2 screws that secure the ignition switch. It may be out of adjustment? Try loosening and sliding down just a bit. It should be adjusted with the column in the lowest tilt position. If not part # UDS424 AZ. If you want the flash to pass feature use #UDS485 Auto Zone and add a fused 12v line to the 4th lug.
http://www.gmcmhphotos.com/photos/s-10-steering-wheel-caddy-conversion/p48874-ignition-switch.html
Silver switch is the ignition, the black & white is the dimmer switch.
| amdgmcman wrote on Mon, 16 September 2013 22:13 |
Greetings,
Since arriving home from my harrowing trip to AZ where if it weren’t for Steve Ferguson we might still be there, gremlins have surfaced in my 78 Royale…
On the way home the high/low beam switch connected to the turn signal stalk on the Caddy steering column broke and now I have no headlights at all. I was hoping that if I sprayed contact cleaner in the openings to the column it might work, but no such luck. It doesn’t click when pulled like it did when working, so the switch inside is probably history. Does anyone know where I can find a replacement unit? I’d like to repair it myself, so is there a schematic or instructions on how to perform the repair?
Then the air bag system is on the fritz. I have the second generation system with the three toggle switches on the panel under the driver’s side window. The system stopped working all together, so I went to fill the bags from outside at the shrader valves, but it was taking so long to do with the small compressor I had available I tried to switch the system on, and it worked. The problem is that the left side won’t turn off. The compressor keeps running unless I pull the fuse. Once I reinsert the fuse the compressor starts and just keeps running. The right bag was not affected and works properly. I removed the switch and cleaned the terminals, but it looks like that it’s not the problem.
Anyone have any ideas, suggestions, comments?
Thanks,
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C. Boyd
76 Crestmont
East Tennessee
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| Re: Electrical gremlins [message #222801 is a reply to message #222795] |
Tue, 17 September 2013 08:03 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Senior Member |
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If the switch is loose it may have slid down and you will need to slide it up, also check for binding on the rod.
| C Boyd wrote on Tue, 17 September 2013 08:46 |
Sir: the Caddy dimmer switch is on the outside of the column below the dash. It has a rod running to it and is fastened to the column with the same 2 screws that secure the ignition switch. It may be out of adjustment? Try loosening and sliding down just a bit. It should be adjusted with the column in the lowest tilt position. If not part # UDS424 AZ. If you want the flash to pass feature use #UDS485 Auto Zone and add a fused 12v line to the 4th lug.
http://www.gmcmhphotos.com/photos/s-10-steering-wheel-caddy-conversion/p48874-ignition-switch.html
Silver switch is the ignition, the black & white is the dimmer switch.
| amdgmcman wrote on Mon, 16 September 2013 22:13 |
Greetings,
Since arriving home from my harrowing trip to AZ where if it weren’t for Steve Ferguson we might still be there, gremlins have surfaced in my 78 Royale…
On the way home the high/low beam switch connected to the turn signal stalk on the Caddy steering column broke and now I have no headlights at all. I was hoping that if I sprayed contact cleaner in the openings to the column it might work, but no such luck. It doesn’t click when pulled like it did when working, so the switch inside is probably history. Does anyone know where I can find a replacement unit? I’d like to repair it myself, so is there a schematic or instructions on how to perform the repair?
Then the air bag system is on the fritz. I have the second generation system with the three toggle switches on the panel under the driver’s side window. The system stopped working all together, so I went to fill the bags from outside at the shrader valves, but it was taking so long to do with the small compressor I had available I tried to switch the system on, and it worked. The problem is that the left side won’t turn off. The compressor keeps running unless I pull the fuse. Once I reinsert the fuse the compressor starts and just keeps running. The right bag was not affected and works properly. I removed the switch and cleaned the terminals, but it looks like that it’s not the problem.
Anyone have any ideas, suggestions, comments?
Thanks,
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C. Boyd
76 Crestmont
East Tennessee
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| Re: Electrical gremlins [message #222803 is a reply to message #222801] |
Tue, 17 September 2013 08:05 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Senior Member |
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If you do replace the switch there is a lock wire that needs to be removed from the new switch after installing.
| C Boyd wrote on Tue, 17 September 2013 09:03 |
If the switch is loose it may have slid down and you will need to slide it up, also check for binding on the rod.
| C Boyd wrote on Tue, 17 September 2013 08:46 |
Sir: the Caddy dimmer switch is on the outside of the column below the dash. It has a rod running to it and is fastened to the column with the same 2 screws that secure the ignition switch. It may be out of adjustment? Try loosening and sliding down just a bit. It should be adjusted with the column in the lowest tilt position. If not part # UDS424 AZ. If you want the flash to pass feature use #UDS485 Auto Zone and add a fused 12v line to the 4th lug.
http://www.gmcmhphotos.com/photos/s-10-steering-wheel-caddy-conversion/p48874-ignition-switch.html
Silver switch is the ignition, the black & white is the dimmer switch.
| amdgmcman wrote on Mon, 16 September 2013 22:13 |
Greetings,
Since arriving home from my harrowing trip to AZ where if it weren’t for Steve Ferguson we might still be there, gremlins have surfaced in my 78 Royale…
On the way home the high/low beam switch connected to the turn signal stalk on the Caddy steering column broke and now I have no headlights at all. I was hoping that if I sprayed contact cleaner in the openings to the column it might work, but no such luck. It doesn’t click when pulled like it did when working, so the switch inside is probably history. Does anyone know where I can find a replacement unit? I’d like to repair it myself, so is there a schematic or instructions on how to perform the repair?
Then the air bag system is on the fritz. I have the second generation system with the three toggle switches on the panel under the driver’s side window. The system stopped working all together, so I went to fill the bags from outside at the shrader valves, but it was taking so long to do with the small compressor I had available I tried to switch the system on, and it worked. The problem is that the left side won’t turn off. The compressor keeps running unless I pull the fuse. Once I reinsert the fuse the compressor starts and just keeps running. The right bag was not affected and works properly. I removed the switch and cleaned the terminals, but it looks like that it’s not the problem.
Anyone have any ideas, suggestions, comments?
Thanks,
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C. Boyd
76 Crestmont
East Tennessee
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| Re: [GMCnet] Electrical gremlins [message #222806 is a reply to message #222769] |
Tue, 17 September 2013 08:17 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Hope you get it fixed Alan. That coach was the first GMC in my driveway
that didn't leak down. It sat for over a week and never dropped so much as
a fraction of an inch. NO shut off valves, just a leak free system.
Steve F.
On Mon, Sep 16, 2013 at 7:13 PM, Alan M DeLuccio <delbassman@yahoo.com>wrote:
>
>
> Greetings,
> Since arriving home from my harrowing trip to AZ where if it weren’t for
> Steve Ferguson we might still be there, gremlins have surfaced in my 78
> Royale…
>
> On the way home the high/low beam switch connected to the turn signal
> stalk on the Caddy steering column broke and now I have no headlights at
> all. I was hoping that if I sprayed contact cleaner in the openings to the
> column it might work, but no such luck. It doesn’t click when pulled like
> it did when working, so the switch inside is probably history. Does anyone
> know where I can find a replacement unit? I’d like to repair it myself, so
> is there a schematic or instructions on how to perform the repair?
>
> Then the air bag system is on the fritz. I have the second generation
> system with the three toggle switches on the panel under the driver’s side
> window. The system stopped working all together, so I went to fill the bags
> from outside at the shrader valves, but it was taking so long to do with
> the small compressor I had available I tried to switch the system on, and
> it worked. The problem is that the left side won’t turn off. The compressor
> keeps running unless I pull the fuse. Once I reinsert the fuse the
> compressor starts and just keeps running. The right bag was not affected
> and works properly. I removed the switch and cleaned the terminals, but it
> looks like that it’s not the problem.
>
> Anyone have any ideas, suggestions, comments?
>
> Thanks,
>
> --
> AMDGMCMan
> Alan M DeLuccio
> 78 Royale with
> Coachmen,Center Kitchen Floorplan
> 09 Harley Davidson Street Glide
> 65 Corvair Monza Convertible
> 96 RAV4 2 door Manual 4WD
> Long Beach, CA
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Take care,
Steve
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| Re: [GMCnet] Electrical gremlins [message #222851 is a reply to message #222806] |
Tue, 17 September 2013 16:23 |
amdgmcman
Messages: 76
Registered: April 2007
Location: Long Beach, CA
Karma: 0
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Thanks Steve,
I know that the suspension is in good shape, I only hope that I can figure out the electrical problem. Do you think there might be a relay that is stuck?
AMDGMCMan
Alan M DeLuccio
78 Royale with
Coachmen,Center Kitchen Floorplan
09 Harley Davidson Street Glide
65 Corvair Monza Convertible
96 RAV4 2 door Manual 4WD
Long Beach, CA
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| Re: Electrical gremlins [message #222853 is a reply to message #222803] |
Tue, 17 September 2013 16:25 |
amdgmcman
Messages: 76
Registered: April 2007
Location: Long Beach, CA
Karma: 0
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Member |
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Thanks for the info ... I now have some direction ... will keep you informed.
AMDGMCMan
Alan M DeLuccio
78 Royale with
Coachmen,Center Kitchen Floorplan
09 Harley Davidson Street Glide
65 Corvair Monza Convertible
96 RAV4 2 door Manual 4WD
Long Beach, CA
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| Re: [GMCnet] Electrical gremlins [message #222921 is a reply to message #222769] |
Tue, 17 September 2013 21:49 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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here are the schematics
http://gmcmotorhome.info/levelsch.htm
gene
>
> Then the air bag system is on the fritz. I have the second generation
> system with the three toggle switches on the panel under the driver’s side
> window. The system stopped working all together, so I went to fill the bags
> from outside at the shrader valves, but it was taking so long to do with
> the small compressor I had available I tried to switch the system on, and
> it worked. The problem is that the left side won’t turn off. The compressor
> keeps running unless I pull the fuse. Once I reinsert the fuse the
> compressor starts and just keeps running. The right bag was not affected
> and works properly. I removed the switch and cleaned the terminals, but it
> looks like that it’s not the problem.
>
> Anyone have any ideas, suggestions, comments?
>
> Thanks,
>
> --
> AMDGMCMan
> Alan M DeLuccio
> 78 Royale with
> Coachmen,Center Kitchen Floorplan
> 09 Harley Davidson Street Glide
> 65 Corvair Monza Convertible
> 96 RAV4 2 door Manual 4WD
> Long Beach, CA
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] Electrical gremlins [message #222956 is a reply to message #222851] |
Wed, 18 September 2013 08:25 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Alan,
Your system is completely different than the one in my '76. I have never
worked on one like yours. I couldn't even begin to make a guess.
Steve
On Tue, Sep 17, 2013 at 2:23 PM, Alan M DeLuccio <delbassman@yahoo.com>wrote:
>
>
> Thanks Steve,
> I know that the suspension is in good shape, I only hope that I can figure
> out the electrical problem. Do you think there might be a relay that is
> stuck?
> --
> AMDGMCMan
> Alan M DeLuccio
> 78 Royale with
> Coachmen,Center Kitchen Floorplan
> 09 Harley Davidson Street Glide
> 65 Corvair Monza Convertible
> 96 RAV4 2 door Manual 4WD
> Long Beach, CA
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Take care,
Steve
_______________________________________________
GMCnet mailing list
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| Re: [GMCnet] Electrical gremlins [message #224208 is a reply to message #223038] |
Tue, 01 October 2013 14:23 |
amdgmcman
Messages: 76
Registered: April 2007
Location: Long Beach, CA
Karma: 0
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Hal, What did you find out about your headlights. I haven't repaired mine yet.
AMDGMCMan
Alan M DeLuccio
78 Royale with
Coachmen,Center Kitchen Floorplan
09 Harley Davidson Street Glide
65 Corvair Monza Convertible
96 RAV4 2 door Manual 4WD
Long Beach, CA
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| Re: [GMCnet] Electrical gremlins [message #224212 is a reply to message #223038] |
Tue, 01 October 2013 14:38 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Senior Member |
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Hal: if you have the dimmer on the column , the switch is mounted to the same bolts as the ignition switch and they adjust separately. Since you are having ignitions switch trouble, I might think the bolts have come loose and lost adjustment on both ignition and dimmer switch.
| hal kading wrote on Wed, 18 September 2013 20:17 |
Must be the time for headlight problems. We were in Elida NM last night on our way to Branson - Couldn't go any further as our headlights wouldn't work and the sun went down. If the steering column dimmer switch goes out, can you loose both bright and dim? Every thing else works but the headlights. We made it to El Reno OK today.
Hal Kading 78 Buskirk Las Cruces NM
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C. Boyd
76 Crestmont
East Tennessee
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| Re: Electrical gremlins [message #224214 is a reply to message #222769] |
Tue, 01 October 2013 14:45 |
amdgmcman
Messages: 76
Registered: April 2007
Location: Long Beach, CA
Karma: 0
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Member |
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I removed and am now cleaning/repairing the three ... three way switches to the leveling system of my 78 Royale. They are the ones located on the panel below the driver's side window. I have them apart and am cleaning the contact points. The switches were in such bad shape that the foam pieces disintegrated, and I don't know the size or where to reposition them when I reassemble the switches. Any help?
AMDGMCMan
Alan M DeLuccio
78 Royale with
Coachmen,Center Kitchen Floorplan
09 Harley Davidson Street Glide
65 Corvair Monza Convertible
96 RAV4 2 door Manual 4WD
Long Beach, CA
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| Re: Electrical gremlins [message #224287 is a reply to message #222769] |
Tue, 01 October 2013 22:04 |
amdgmcman
Messages: 76
Registered: April 2007
Location: Long Beach, CA
Karma: 0
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Member |
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I turned on the ignition after removing the switches, and the compressor still runs. The only way to turn it off, (with the ignition on), is to remove the 30 amp fuse. So I'll have clean switches, but it's not the problem. Any ideas?
AMDGMCMan
Alan M DeLuccio
78 Royale with
Coachmen,Center Kitchen Floorplan
09 Harley Davidson Street Glide
65 Corvair Monza Convertible
96 RAV4 2 door Manual 4WD
Long Beach, CA
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| Re: Electrical gremlins [message #224291 is a reply to message #222769] |
Tue, 01 October 2013 22:26 |
amdgmcman
Messages: 76
Registered: April 2007
Location: Long Beach, CA
Karma: 0
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Member |
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Oh one thing ... the warning light on the dash that tells you to switch to the Auto setting remains lit. It used to go out when you put the shifter into drive, but a few weeks back it didn't automatically turn off as in the past. Maybe a connection?
AMDGMCMan
Alan M DeLuccio
78 Royale with
Coachmen,Center Kitchen Floorplan
09 Harley Davidson Street Glide
65 Corvair Monza Convertible
96 RAV4 2 door Manual 4WD
Long Beach, CA
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